rapid sand filter will be constructed for average flow rate of 0.06 m3 / h.

Design (...find dimensions...) and draw the filter.

Your consultancy is planning the layout for a city centre train station. This is a terminal station in which all trains have to enter forwards and leave by reversing out. (Examples of this type of station are King’s Cross or Euston stations in London, or Gard du Nord in Paris, home of Eurostar.)

Explain how you would establish the space, flow and activity relationship requirements for the train station layout. Within your answer identify the types of information you would need and how it would be analysed.

On the Miller Park Stadium project who had the ultimate responsibility to make sure that wind loads on the roof trusses were included in the engineered lift of the roof trusses. (From YouTube Video)

1. Engineered lift planning engineer
2. Sling and hardware design engineer
3. Project manager
4. Project owner
5. Project safety manager

6.) Concerning flammability limits in a confined space, a mixture that is above the UEL/UFL is considered to be too __________ to burn.

1. Rich
2. Lean
3. Diffuse
4. Concentrated
5. None of the above

7.) The displacement of the atmosphere in a permit space by a noncombustible gas (such as nitrogen) to such an extent that the resulting atmosphere is noncombustible is referred to as __________.

1. Isolation
2. Deletion
3. Engulfment
4. Inerting
5. Substitution

1.) Concerning confined space rescue, a mechanical device shall be available to retrieve personnel from vertical type permit spaces more than __________ deep.

1. 3 feet
2. 5 feet
3. 7 feet
4. 9 feet
5. 11 feet

2.) In assessing air quality in a confined space, the correct testing order is ____________.

1. Test for combustibles, test for O₂, test for toxins
2. Test for O₂, test for combustibles, test for toxins
3. Test for toxins, test for combustibles, test for O₂
4. Test for O₂, test for toxins, test for combustibles
5. Test for toxins, test for O₂, test for combustibles

3.) A confined space that contains any hazard or hazardous atmosphere capable of causing death or serious harm would best be termed a:

1. Permit-required confined space
2. Non-permit-required confined space
3. Hot-work permit-required confined space
4. Non-hot-work permit required confined space
5. None of the above

4.) Hot work permits are required any time

1. Temperatures exceed 100^o F at the job site
2. Work operations are taking place at elevated temperatures
3. Work such cutting, burning or welding could provide an ignition source
4. Flammable gas is present at levels above a 25% concentration
5. None of the above

Due Monday March 18

1. Three pipelines as described below are arranged in 3 modes: 1) series 2) parallel and 3) series-parallel with pipeline A as the main that feeds pipelines B and C which are in parallel. In all three modes the total pressure drop from the system inlet to outlet is 350 feet. The friction factor (f) for all pipelines is 0.014. Calculate the flow and pressure for each pipeline in all 3 modes and list the answers in the table. Attach your calculation sheets.

Line                                   A                     B               C

Diameter, inches               12                    8                6

Length, feet                       9850                6800          3500

Series Parallel Mode

develop a sample of Scope of Work for constructing a steel-structure chalet

1. Calculate the angular misclosure and adjust the interior angles. Compute the azimuth angles for the lines BC, CD and DA based on the adjusted angles. Calculate the departure and latitude for the all the lines. Balance the computed departure and latitude for all the lines. Calculate the coordinates for the stations B, C, and D based on the give coordinate for the station A. Compute the final lengths and azimuth angles.

A column is to support a statue concentrically that weighs 200 kN. The cross section of the column is a regular hexagon with a hole in its center. The diameter of the hole is 75mm. If the stress in the column is limited to 250 MPa, what is the measure of one side of the hexagon? Answer should be in mm.

i: A hydraulic shovel with a bottom-dump bucket with a heaped bucket volume of 5 m³ is excavating tough clay. The swing angle is 47 degrees and the job efficiency is 0.86. Calculate the shovel production in BCM

ii: Estimate the time required to load 452 m³ of gravel from a stockpile into trucks using a clamshell having a heaped bucket capacity of 0.57 m³. The estimated cycle time is 20s. Swing depth factor = 1.0. Job efficiency is estimated to be 51min/h.

iii: A small hydraulic excavator will be used to dig a trench in hard clay. The trench size is 0.76 m wide by 1.52m deep. The excavator bucket available is 0.76 m wide and has a heaped capacity of 0.51m³. The maximum digging depth of the excavator is 4.90 m. The average swing angle is expected to be 75° and the job efficiency is 71 %. Estimate the hourly trench production in BCM and in linear meters of a trench.

Explain these different forms of phasing: •   Leading right turn •   Lagging right turn •   Leading-through-lagging •   Split approach •   Diamond overlap

True or false: all traffic facing a green circle display has right of way

True or false: all traffic turning in the direction of a green arrow has right of way

Explain the yellow trap (also known as the right turn trap)

1. What area is defined as the GFCI Zone in a kitchen? What is the maximum distance permitted along a wall at the counter work surface in a kitchen between receptacle outlets?

Typically, increase the fineness of portland cement will _________ the rate of hydration process.
A. increase             B. decrease             C. not affect

In what case the concrete can benefit from the high heat generated during hydration process? And what case the high heat will have negative effect on the concrete?

Define the following terminologies and identify their differences: density, relative density, bulk density, specific gravity and unit weight.

A small village is located near a stream which is to be used as the source of water supply for

the community. The minimum flow in the stream is 550 m3/h. The population analysis

reveals that the population is expected to increase linearly from a population of 10,000 in

2008 to 30,000 in 2058.

The water consumption of the community is estimated to reach an annual average demand

of 300 L/capita/day, a maximum daily demand of 1.8 times the annual average and peak

hourly demand of 1.5 times the daily average.

Would you be able to supply these demands directly from the stream? If not, what would

you recommend?

a) In the year 2030

b) In the year 2058